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UV Index in Slovakia

Live UV forecast for 61 cities

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UV climate of Slovakia: overview

Slovakia stretches from 47.7636° to 49.435° latitude (Northern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 7.5 in Dunajska Streda (peak in June), while in Zilina the yearly maximum is only ≈ 7.3.

UV index by month by climate zone

ZoneCitiesJFMAMJJASONDPeak
Temperate61 2.1 3.1 4.5 6 6.9 7.4 7.2 6.5 5.4 4 2.8 2 7.4

Calculated clear-sky noon peaks at the average latitude of each zone. Real values vary with clouds, altitude and ozone.

Sunniest cities in Slovakia (highest UV)

Dunajska Streda · 7.5 in June Komarno · 7.5 in June Nove Zamky · 7.5 in June Banovce nad Bebravou · 7.4 in June Banska Bystrica · 7.4 in June

Cities with the mildest sun

Zilina · max 7.3 Stara Lubovna · max 7.3 Cadca · max 7.3 Bardejov · max 7.3 Zvolen · max 7.4

When do you need SPF in Slovakia?

Using Bratislava as a reference: the UV index reaches 6+ in April, May, June, July and August. In the sunniest zones (see table) SPF 30–50+ is needed almost year-round; in the mildest — only in late spring and summer.

FAQ: UV index in Slovakia

What is the highest UV index in Slovakia?

The calculated clear-sky maximum is ≈ 7.5 — in Dunajska Streda around June. Values above this occur only near the equator and in high mountains.

Which city in Slovakia is the sunniest?

Dunajska Streda (peak ≈ 7.5), followed by Komarno and Nove Zamky. The mildest sun is in Zilina (max ≈ 7.3).

When is SPF needed in Slovakia?

In Bratislava and similar latitudes the UV reaches 6+ in April, May, June, July and August: use SPF 30–50+ on sunny days. Protection is advised from UV 3.

Is UV 11+ possible in Slovakia?

No — the local maximum is ≈ 7.5. UV 11+ occurs only near the equator, in deserts and high mountains.